*SUPPORT*
IN: fep OUT: GREEN
IN: fep kiki lug OUT: RED RED GREEN
IN: fep gazzer fep OUT: GREEN GREEN
IN: fep dax lug OUT: RED GREEN
IN: wif zup kiki wif OUT: YELLOW YELLOW YELLOW PINK
IN: lug dax zup OUT: PINK RED
IN: zup lug OUT: PINK RED
IN: zup wif gazzer fep OUT: PINK YELLOW GREEN
IN: wif dax lug OUT: RED YELLOW
IN: zup gazzer zup kiki lug kiki fep OUT: GREEN GREEN RED RED PINK PINK
IN: zup gazzer wif OUT: PINK YELLOW
IN: zup gazzer zup kiki zup OUT: PINK PINK PINK PINK
IN: lug dax wif OUT: YELLOW RED
IN: fep dax fep OUT: GREEN GREEN

*QUERY*
IN: wif fep wif gazzer zup kiki fep OUT: GREEN GREEN YELLOW GREEN YELLOW PINK
IN: zup gazzer zup OUT: PINK PINK
IN: wif dax zup kiki zup OUT: PINK PINK PINK YELLOW
IN: zup gazzer fep kiki fep OUT: GREEN GREEN PINK GREEN
IN: zup OUT: PINK
IN: fep dax zup OUT: PINK GREEN
IN: wif dax fep kiki wif kiki zup OUT: PINK PINK YELLOW YELLOW GREEN YELLOW
IN: fep lug kiki lug OUT: RED RED GREEN RED
IN: wif dax zup OUT: PINK YELLOW
IN: wif dax wif OUT: YELLOW YELLOW

*GRAMMAR*
lug -> RED 
 zup -> PINK 
 fep -> GREEN 
 wif -> YELLOW 
 u1 dax u2 -> [u2] [u1] 
 u1 gazzer u2 -> [u1] [u2] 
 x1 kiki u1 -> [u1] [u1] [x1] 
 u1 x1 -> [u1] [x1] 
 